ALSA: hda - Allow codec-specific set_power_state ops

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The procedure for codec D-state change may have exceptional cases
depending on the codec chip, such as a longer delay or suppressing D3.

This patch adds a new codec ops, set_power_state() to override the system
default function.  For ease of porting, snd_hda_codec_set_power_to_all()
helper function is extracted from the default set_power_state() function.

As an example, the Conexant codec-specific delay is removed from the
default routine but moved to patch_conexant.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2011-07-26 10:33:10 +02:00

parent e581f3dba5

commit 4d7fbdbcb1

3 changed files with 56 additions and 41 deletions

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78

sound/pci/hda/hda_codec.c

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5

sound/pci/hda/hda_codec.h

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14

sound/pci/hda/patch_conexant.c

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